D defs.my
Entry 2 senses Webster, 1913

Defensible

/dĭf-ĕn'-səb-əl/ · De·fen·si·ble · IPA /dɪˈfɛn.sɪ.bəl/
01 a. Capable of being defended; as, a defensible city, or a defensible cause.
  1. 1.
    Capable of being defended; as, a defensible city, or a defensible cause.
  2. 2.
    Capable of offering defense.[Obs.]